...Jinan Zhongwei Forged Grinding Balls are made from high carbon steel bars with the proper alloying elements. Bars are heated to forging temperatures and formed into nearly perfect spheres. Then, balls are heat-treated...

...Jinan Zhongwei Forged Grinding Balls are made from high carbon steel bars with the proper alloying elements. Bars are heated to forging temperatures and formed into nearly perfect spheres. Then, balls are heat-treated... more